94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
/**
|
|
* Field.cpp
|
|
*
|
|
* @copyright 2014 - 2020 Copernica BV
|
|
*/
|
|
#include "includes.h"
|
|
|
|
/**
|
|
* Set up namespace
|
|
*/
|
|
namespace AMQP {
|
|
|
|
/**
|
|
* Decode a field by fetching a type and full field from a frame
|
|
* The returned field is allocated on the heap!
|
|
* @param frame
|
|
* @return std::unique_ptr<Field>
|
|
*/
|
|
std::unique_ptr<Field> Field::decode(InBuffer &frame)
|
|
{
|
|
// get the type
|
|
uint8_t type = frame.nextUint8();
|
|
|
|
// create field based on type
|
|
switch (type)
|
|
{
|
|
// @todo: use std::make_unique when switching to C++14/17/20
|
|
case 't': return std::unique_ptr<Field>(new BooleanSet(frame));
|
|
case 'b': return std::unique_ptr<Field>(new Octet(frame));
|
|
case 'B': return std::unique_ptr<Field>(new UOctet(frame));
|
|
case 'U': return std::unique_ptr<Field>(new Short(frame));
|
|
case 'u': return std::unique_ptr<Field>(new UShort(frame));
|
|
case 'I': return std::unique_ptr<Field>(new Long(frame));
|
|
case 'i': return std::unique_ptr<Field>(new ULong(frame));
|
|
case 'L': return std::unique_ptr<Field>(new LongLong(frame));
|
|
case 'l': return std::unique_ptr<Field>(new ULongLong(frame));
|
|
case 'f': return std::unique_ptr<Field>(new Float(frame));
|
|
case 'd': return std::unique_ptr<Field>(new Double(frame));
|
|
case 'D': return std::unique_ptr<Field>(new DecimalField(frame));
|
|
case 's': return std::unique_ptr<Field>(new ShortString(frame));
|
|
case 'S': return std::unique_ptr<Field>(new LongString(frame));
|
|
case 'A': return std::unique_ptr<Field>(new Array(frame));
|
|
case 'T': return std::unique_ptr<Field>(new Timestamp(frame));
|
|
case 'F': return std::unique_ptr<Field>(new Table(frame));
|
|
case 'V': return std::unique_ptr<Field>(new VoidField(frame));
|
|
default: return nullptr;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Cast to string
|
|
* @return std::string
|
|
*/
|
|
Field::operator const std::string& () const
|
|
{
|
|
// static empty string
|
|
static std::string empty;
|
|
|
|
// return it
|
|
return empty;
|
|
}
|
|
|
|
/**
|
|
* Cast to array
|
|
* @return Array
|
|
*/
|
|
Field::operator const Array& () const
|
|
{
|
|
// static empty array
|
|
static Array empty;
|
|
|
|
// return it
|
|
return empty;
|
|
}
|
|
|
|
/**
|
|
* Cast to object
|
|
* @return Array
|
|
*/
|
|
Field::operator const Table& () const
|
|
{
|
|
// static empty table
|
|
static Table empty;
|
|
|
|
// return it
|
|
return empty;
|
|
}
|
|
|
|
/**
|
|
* End of namespace
|
|
*/
|
|
}
|
|
|